Aaron Putnam
@aaronputnam14
Earth and climate science prof. I study past climate changes and the history of Earth’s ice masses. ❄️🦣 (views mine)
ID: 1236817228177301507
09-03-2020 00:53:44
6,6K Tweet
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Fantastic episode of ‘Ancient Earth’ on NOVA | PBS this evening. This episode: Frozen! Snowball Earth and the emergence of complex life. Featuring R. T. Pierrehumbert, @seis_matters, Brenhin Keller, and many others! pbs.org/video/ancient-…